In Magento 2.4.x CE site noticed that category pages are displaying same content/products whenever a category has more than 2 pages. Basically pages 3, 4, and so on display page # 2 products. Tried clearing cache, re-index couple of times but still no clue. Doesn't appear to be related to a theme as disabling or changing to other didn't fix the issue. Products are not duplicated in the category based on the back-end data.
Any clues on how to debug this issue as I don't see any errors or messages in the logs.
Tested rest/default_1/V1/products?searchCriteria
API endpoint with different category id's and results matches with admin panel numbers.
What other code or files I should check to debug this further or any other clues?
Doesn't appear to be indexing issue either, as I see same results even after running indexer:reindex couple of times.
Thanks
bin/magento indexer:reindex
command